MARY K ANDERSON PHD PLLC
MARY K ANDERSON PHD PLLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003094178, based in Ann Arbor, MI. It is classified under Adult Mental Health Clinic/Center.
Getting there
Here is what surrounds this office in Ann Arbor, based on OpenStreetMap data collected Sep 5, 2026. Parking is available about 0.21 mi away at Fourth & Washington Parking Structure. There is EV charging 0.41 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 626 ft away, served by Huron + Main. If you arrive early, there is a coffee shop 847 ft away.
Getting here and what is nearby
Transit 366 ft ~2 min
Coffee Espy Cafe 413 ft ~2 min
404 West Huron Street, Ann Arbor 48103-4206
Mo-Su 08:00-03:00
Parking Ann Ashley Parking Structure 445 ft ~2 min
Transit 509 ft ~2 min
Hotel Residence Inn Ann Arbor Downtown 507 ft ~2 min
Transit Huron + Main 626 ft ~3 min
Convenience Main Street Party Store 614 ft ~3 min
201 North Main Street, Ann Arbor 48104
Mo-Su 07:00-02:00; Dec 24 07:00-21:00; Dec 25 12:00-21:00
Restaurant Bao Space 639 ft ~3 min
205 North Main Street, Ann Arbor 48104
Su 11:00-15:00; Tu-Sa 11:00-15:00,17:00-19:30
Restaurant Chapala Mexican Restaurant 640 ft ~3 min
211 North Main Street, Ann Arbor 48104
Mo-Th 12:00-22:00; Fr,Sa 12:00-23:00; Su 12:00-21:00
Restaurant Heidelberg Restaurant 642 ft ~3 min
215 North Main Street, Ann Arbor 48104
Mo-Th 16:00-24:00; Fr-Su 00:00-02:00,16:00-24:00
Coffee Mighty Good Coffee 669 ft ~3 min
Coffee Café Zola 847 ft ~4 min
112 West Washington Street, Ann Arbor 48104
Su-Th 08:00-22:00; Fr,Sa 08:00-23:00
Convenience University Fuel Mart 866 ft ~4 min
300 North Main Street, Ann Arbor 48104
Gas station BP 829 ft ~4 min
300 North Main Street, Ann Arbor 48104
Parking First & Washington Parking Structure 938 ft ~4 min
Hotel Washington House 0.21 mi ~5 min
Parking Fourth & Washington Parking Structure 0.21 mi ~5 min
123 East Washington Street, Ann Arbor 48104
24/7
Grocery People's Food Co-op 0.21 mi ~5 min
216 North Fourth Avenue, Ann Arbor 48104
Mo-Su,PH 08:00-21:00
Hotel Embassy Hotel 0.22 mi ~5 min
200 East Huron Street, Ann Arbor 48104
Convenience Sparrow Market 0.28 mi ~6 min
407 North Fifth Avenue, 48104
Mo-Fr 08:00-19:00; Sa 07:00-18:00; Su 09:00-18:00
EV charging ChargePoint 0.30 mi ~7 min
Grocery Kanbu Asian Mart 0.31 mi ~7 min
249 East Liberty Street
EV charging ChargePoint 0.33 mi ~7 min
Gas station Mobil 0.35 mi ~7 min
EV charging 0.41 mi ~9 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 6301008873 | MI | Adult Mental Health Clinic/Center primary |
This provider holds licence 6301008873 issued in MI. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Adult Mental Health covers
An entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to mental and behavioral disorders in adults. NUCC Health Care Provider Taxonomy, code 261QM0850X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003094178 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jan 31, 2008 |
| Last updated | Jan 31, 2008 |
| Status | Active |
| Practice address |
111 N 1ST ST STE 1 Ann Arbor, MI 48104 (734) 327-5934 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 0 | 9 | 4 | 1 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 9 | 8 | 1 | 5 |
Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.